ᐅ New floor construction in the ground floor of an existing building
Created on: 15 Dec 2021 11:32
R
Rene_389
Hello everyone!
I’m new here and just bought a house (built in 1953) yesterday that will be renovated.
I already have ideas and plans for most areas, except for the one mentioned in the topic.
The structure is in very good condition and everything is dry.
Here are some details about the house:
Masonry with 25cm (10 inches) standard bricks
Partially basemented (this is the area I’m asking about)
Currently gas heating
No external thermal insulation composite system (ETICS) / no external wall insulation
Double glazing installed around 2000
The part of the house without a basement has a strip foundation, and the floor is built on wooden joists resting on slag.
I would like to insulate the basement ceiling as well as the floor of the non-basement part.
What floor construction would you recommend for the non-basement part of the house, without increasing the floor height?
Thanks and best regards!
Rene
I’m new here and just bought a house (built in 1953) yesterday that will be renovated.
I already have ideas and plans for most areas, except for the one mentioned in the topic.
The structure is in very good condition and everything is dry.
Here are some details about the house:
Masonry with 25cm (10 inches) standard bricks
Partially basemented (this is the area I’m asking about)
Currently gas heating
No external thermal insulation composite system (ETICS) / no external wall insulation
Double glazing installed around 2000
The part of the house without a basement has a strip foundation, and the floor is built on wooden joists resting on slag.
I would like to insulate the basement ceiling as well as the floor of the non-basement part.
What floor construction would you recommend for the non-basement part of the house, without increasing the floor height?
Thanks and best regards!
Rene
Rene_389 schrieb:
Attached is the plan (which, however, does not correspond much to reality) [...] the plank floor rests on wooden beams that lie on a simply flame-treated concrete slab, with slag in between.
Thanks again for the help! You can definitely get quite a bit of help – depending on how much of the rest of the plans you share. Regarding the floor you specifically asked about here, the section drawing unfortunately does not provide much information, but otherwise quite a lot can be gathered from it, and even more from the complete set of plans (plans are best understood by looking at them together). Consider how much advice you want to receive – from my experience, questioners also benefit from suggestions about areas they initially did not have questions about; therefore, I would recommend discussing aspects where you already feel “certain” that you have found the “right” / best / most suitable solution. What you have shown so far tends to indicate that modernization is worthwhile but will also involve some work (keyword: energy-efficient renovation). You should describe the deviations from reality in more detail – I assume you mainly mean parts that have since been remodeled or added, rather than original discrepancies between plan and construction. Of the properties I have come across here, yours seems most comparable to this one from 1954: https://www.hausbau-forum.de/threads/siedlungshaus-1954-sanieren-zum-effizienzhaus-moeglich-wie.27425/, although the exterior walls and ceiling/roof structure of your property appear to be more favorable.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Since both the basement and living areas are dry, I am considering a complete renovation of the house. Regarding the heating system, I am still unsure and plan to consult an energy advisor.
I am also planning external thermal insulation composite system (ETICS), basement ceiling insulation, new windows, insulation for the top floor ceiling with an unfinished attic, a new roof, and all plumbing and electrical installations.
On the upper floor, I will keep the cinder fill and might just top it up with dry fill. If the joists are too uneven, I may reinforce them by doubling. I plan to install a dry screed, and from the current perspective, I would not need to raise any overlays higher and could achieve a good result with relatively little effort. Since there is a concrete slab on the ground floor even in the non-basement area, I would use bonded fill here, again followed by dry screed. Underfloor heating is ruled out for me because of the wooden beam ceiling and the complexity of the floor construction.
I welcome alternative suggestions. Although I am a skilled tradesperson, I am not experienced in construction.
I am also planning external thermal insulation composite system (ETICS), basement ceiling insulation, new windows, insulation for the top floor ceiling with an unfinished attic, a new roof, and all plumbing and electrical installations.
On the upper floor, I will keep the cinder fill and might just top it up with dry fill. If the joists are too uneven, I may reinforce them by doubling. I plan to install a dry screed, and from the current perspective, I would not need to raise any overlays higher and could achieve a good result with relatively little effort. Since there is a concrete slab on the ground floor even in the non-basement area, I would use bonded fill here, again followed by dry screed. Underfloor heating is ruled out for me because of the wooden beam ceiling and the complexity of the floor construction.
I welcome alternative suggestions. Although I am a skilled tradesperson, I am not experienced in construction.
Are you not planning to extend, renovate, or modify interior walls?
Based on the drawings shown so far, I am still unsure to what extent the roof structure can accommodate insulation upgrades that meet current retrofit regulations. Adding additional wall construction on the outside seems quite feasible here. Have you already read the linked example?
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Based on the drawings shown so far, I am still unsure to what extent the roof structure can accommodate insulation upgrades that meet current retrofit regulations. Adding additional wall construction on the outside seems quite feasible here. Have you already read the linked example?
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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